[jira] [Updated] (HADOOP-8810) when building with documentation build stops waiting for ENTER on terminal

["Alejandro Abdelnur (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-8810?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alejandro Abdelnur updated HADOOP-8810:
---------------------------------------

    Attachment: HADOOP-8810.patch
    
> when building with documentation build stops waiting for ENTER on terminal
> --------------------------------------------------------------------------
>
>                 Key: HADOOP-8810
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8810
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: build
>    Affects Versions: 2.0.3-alpha
>            Reporter: Alejandro Abdelnur
>            Assignee: Alejandro Abdelnur
>             Fix For: 2.0.3-alpha
>
>         Attachments: HADOOP-8810.patch
>
>
> When building the docs {{mvn clean package -Pdocs -DskipTests site site:stage -DstagingDirectory=/tmp/hadoop-site}}, in OSX (and I've seen it a few times in Ubuntu as well), the build stops, if you press ENTER it continues. It happens twice.
> I've traced this down to the exec-maven-plugin invocation of protoc for hadoop-yarn-api module (and other YARN module I don't recall at the moment).
> jstacking the Maven process it seems the exec-maven-plugin has some locking issues consuming the STDOUT/STDERR of the process being executed.
> I've converted the protoc invocation in the hadoop-yarn-api to use the antrun plugin instead and then another module running protoc using exec-maven-puglin hang.

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